Precious metal alloy composition



Mai

Fntenteel finiy 3,

Lessors q rsscroessmrrn. ALLOY oorrmosrrrolr Norris 0. Taylor, Minneapolis, Minter, assignor to Spyco smelting and Refining (Jompnny, Minneanolis,

No slewing. Application may lei, 1934,

- Serial No. resets itllleim.

My invention relates to precious metal alloy compositions. It relates more particularly to compositions of this character for use in wrought and cast dental work and for use in manufacg; turing jewelry. object is to produce an alloy which has distinct advantages for such usage.

The full objects and advantages of my invention will appear in connection with the detailed description thereof and the novel features of m the invention will be particularly pointed out in the claim.

in carrying out my invention, 1 utilize as alloy metals, gold, palladium, silver, copper and indium. For the uses above. stated, I have found 15 that the difierent elements may be satisfactorily combined in proportions by weight within the following ranges:

Per cent" Gold 1 r to-lS 2 Pelledium 22 1:030

Per cent Silver 3'? to 50 I Copper to Indium V to 5 A precious metal alloy composition composed 70 of from 5 to 15% of gold, from 22 to of palladium, from37 to of silver, from 10 to 20% of copper, and from to 5% of indium.

NORRIS o. TAYLOR. 7s 

